Average annual temperature is 11.9 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: -8.3 °C
Number of sunny days: 160 days
Number of rainy days: 204 days
Number of snow days: 1 day
Look at detailed online map of Multnomah County
* Weather data for Multnomah County United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.1 | 12.5 | 17.0 | 26.1 | 30.6 | 34.1 | 35.7 | 40.6 | 33.6 | 26.7 | 17.3 | 15.1 |
| Average daytime temperature (°C) | 7.8 | 7.8 | 9.8 | 13.8 | 22.8 | 25.2 | 29.9 | 31.1 | 23.8 | 17.9 | 11.6 | 9.7 |
| Average temperature (°C) | 4.8 | 3.6 | 5.0 | 8.6 | 15.7 | 17.0 | 21.0 | 22.4 | 17.0 | 13.0 | 7.7 | 6.8 |
| Average night temperature (°C) | 2.8 | 0.8 | 1.8 | 5.2 | 10.7 | 11.3 | 14.0 | 15.8 | 12.1 | 9.9 | 5.2 | 5.0 |
| Absolute minimum temperature (°C) | -4.2 | -8.3 | -3.4 | 0.2 | 7.0 | 7.5 | 11.2 | 10.6 | 6.7 | 1.9 | -1.0 | 1.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.2 | 4.6 | 5.3 | 6.0 | 10.7 | 12.1 | 13.3 | 11.5 | 8.5 | 6.7 | 5.2 | 2.8 |
| Precipitation (mm) | 186 | 160 | 230 | 232 | 48 | 41 | 6 | 44 | 109 | 140 | 241 | 383 |
| Sunny days | 7 | 9 | 4 | 7 | 16 | 20 | 25 | 23 | 17 | 13 | 12 | 7 |
| Rainy days | 24 | 18 | 27 | 23 | 15 | 10 | 6 | 8 | 13 | 18 | 18 | 24 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Multnomah County during the most sunny months:
Months with the longest average daylight duration in Multnomah County:
The largest precipitation sum in Multnomah County is at